Sealed lock for car-doors



' M. P. JENKINS.

SEALED LOCK FOR CAR DOORS.

APPLICATION FILED SEPT. s. 1919.

1,349,280, I PaIenIeaAug. 10,1920.

rUNITED STATES PATENT o FFlcE.

MASSEY J?. JENKINS, OFNEWPORT NEWS, VIRGINIA.

SEALED LOCK FOR (mt-DOORS..`

Specification of Letters Patent. Patented Aug, 1K0, 192i).

Application led September 6, 1919. Serial No. 322,010.

an extremely simple and easily appliedk scaling element, and one that is adapted-to be expeditiously and veasily manipulated, and in which the elements are so relatively arranged that the car door cannot be released without the seal being destroyed to such an extent as to make the surreptitious opening of the door readily apparent.

To the attainment of the foregoing, the invention consists in the improvement as hereinafter described and definitely claimed.

In the accompanying drawings, hereby made a part hereof:

Figure 1 is a side elevation showing a car door locked in accordance with my invention. Y

Fig. 2 is a vertical `section taken in a plane parallel to Fig. 1.

Fig. 8 is a view taken at right angles to Fig. 2 and showing the lock in elevation.

Fig. 4 is a horizontal transverse section taken in a plane indicated by the line 4 4 of Fig. 2.

Fig. 5 is a Vplan view showing the head on the locking bolt.

Similar numerals of reference designate corresponding parts in all of the views of the drawings.

The car body is indicated by 1 in Fig. 1, and the door, indicated by 2, is of the sliding type. On the door is a hasp 8 slotted as shown to receive the staple 4 of my lock, in which staple is a vertically disposed vaperture 5, Fig. 2. The said staple 5 is carried by and projects laterally from thebase plate 6 of the lock casing; the said base plate 6 being designed to be lixed at the point 7 to the opposite wall ofthe car body.

In addition to the base plate 6, the lock casing, represented at 8, is provided on its wall toward the end of the door 2, with parallel and apertured ears 9, and in said wall the casing is provided with an aperture 10. Above the ears 9 the base wall alluded to is provided with a lug 11 in which is a socket 12. v

In the upper endwall of the casing 84 is an opening 18, surrounded by an upstanding flange 18a.

Movable vertically in the casing 8 Vis a locking-bolt 14, having in one side a vertically extending slot 15, and also having a reduced lower portion 16 which extends through an aperture in the lower end wall of the casing and is designed to rest` in the` staple 4 and at the outer side of the hasp 3 so as to retain the latter on the staple. Formed integral with or permanently fixed to the upper end of the locking bolt 14 is a head 17 in the vunder side of which is a groove 18 to receive the before-mentioned flange 13a, this with a view to excluding rain from the interior of the lock, and also with a view to breaking joints so as to render it practically impossible for an in-` strument to be inserted in an attempt to raise the bolt 14. At one end the head 17 provided with a lateral extension 19 in which is an aperture 20. j i

Disposed in the casing in parallel relatiorr to the bolt 14 is a movable guard member 21 having a` tongue 22 disposedin the slot 15 of the bolt 14 and also having a tubular upper portion. Seated in said tubular upper portion of the member'` 21 and interposed between the bottom wall thereof and a retaining pin 23 depending from the top wall of the casing, is a coiled spring 24 which is employed to yieldingly hold the member 21 in its lowermost position and to move said member 21 downwardly, as hereinafterdescribed. j

Looped through the aperture 2O in the bolt head is a seal strip 25 which is formed of a single piecefof sheet-metal with apertures adjacent to its ends, and is therefore susceptible of production at extremely small cost.

Fulcrumed between the ears 9 is a lever 26, on the upper arm of which is a stud 27 to enter the apertures in the sealing strip 25 and to seat in the socket of the lug 11. @n its lower arm thelever 26 is provided with an inwardly extending projection 28 which is designed to cooperate with the lower end of the guard member 21, as hereinafter described.

My novel lock is shown in Fig. 2 as locking the door, and when it is desired to unlock the door, the sealing strip is severed or broken, whereupon the bolt 14k may be freely moved upwardly in order to release Y the door hasp 3. The bolt 111 cannot, `however, be entirely withdrawn from the casing, inasmuch as the bottom wall of the kerf 15 will bring up against the tongue 22 on the guard member 21. When the bolt 14 is moved upwardly as stated, the bottom wall of the slot 15, bringing up against the tongue 22 will raise the guard member 21 until the lower end thereof is clear of the projection 2S on lever 26, whereupon the lower arm of saidlever may be swung inwardly and the upper arm thereof swung outwardly. In

lthe latter position of the lever, the broken or severed sealing strip may be readily removed from the stud 27 of the lever.

Inlockingfa door through the medium of my improvement, the hasp is positioned over the staple and a fresh sealing strip is looped through the aperture 20 in the joint headl and is engaged with the stud 27 as shown, whereupon the upper arm of the lever 26 is `moved inwardly to seat the stud 27 in its the ylower arm of said lever, the spring 2l' will force the guard 21 downwardly to the position shown in Fig. 2, whereupon thev guard member 21 will prevent inward movement of the lower arm of the lever 26 and will preclude opening of the lock without severing or breaking of the Vsealing strip 25,

Having described my invention, what I claim and desire to secure by Letters-Patent,

is: Y

LA sealed lock comprising a casing, a rectilinearly movable bolt havinga longi tudinal slot in its side and also having a head on which is an apertured extension, a movable guard member disposed in the casing alongside the bolt and having a tongue arrangedfin the slot of the bolt, a spring interposed between said guard member and an opposed abutment in the casing, a sealing strip looped through the Vaperture in the bolt head and having apertures adjacent to its ends, and a lever fulcrumed at an intermediate point of its length on the casing and having on one arm a stud to enter the apertures in the sealing strip and also having on itsrother arm a projection movable inwardly through an aperture in a wall of the casing when the guard member isV clear of said aperture.V

head and having apertures adjacent to its.l

ends,and a lever .fulcrumed at an intermediate point of its length on the casing andA havingon one arm a stud to enter the apertures inthe sealing strip and also having onV its other arm a projection movable inwardly through an aperture in a wall of the casing when the guard member is clear of said aperture; the joint between the casing and the bolt head being broken, andthe spring being Vsocketed in the guard member, and the casing being provided witha socket to receive the lever stud.V

3. A sealed lock'comprising a casing, a movable bolt therein, a guard member 'also movable in the casing, a spring to move thev guard member in one direction, Vsaid guard member being movable by the bolt in the opposite direction, a lever, a sealing strip to connect the bolt and the-lever, and means on the lever and coperating with the guard member to prevent disconnection of the sealing strip from the lever when the guard member is one position and to permit such disconnection when the guard member is in anotherrposition.

4. lA lock comprising a casing, a bolt, a guard member movable in the casing and engaged with the bolt, .a spring to move the guard member in one direction, a lever, and a seal to connect the bolt and the lever; said lever having means to cooperate with the guard member whereby in one position of the guard member disconnection of the seal from the lever will be prevented and in another position 'of the guard member such disconnection will Vbe permitted.

5. The combination in a lock, of a casing, a bolt, a movable guard member, and a movable member adapted for connection through sealing means .with the bolt; said movable member having means to cooperate with the guard member whereby in one position of the guard member disconnection of the sealing means from the movable member will be prevented and in another position of the guard member sealing means may be connected with the movable member.

In testimony whereof I aliix myjsignature.

' Mnssnv r. JENKiNs. 

